1533239 has 2 divisors, whose sum is σ = 1533240. Its totient is φ = 1533238.

The previous prime is 1533221. The next prime is 1533283. The reversal of 1533239 is 9323351.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1533239 - 2⁸ = 1532983 is a prime.

It is a super-2 number, since 2×1533239² = 4701643662242, which contains 22 as substring.

It is a Chen prime.

It is equal to p₁₁₆₄₈₆ and since 1533239 and 116486 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1533139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 766619 + 766620.

It is an arithmetic number, because the mean of its divisors is an integer number (766620).

2^1533239 is an apocalyptic number.

1533239 is a deficient number, since it is larger than the sum of its proper divisors (1).

1533239 is an equidigital number, since it uses as much as digits as its factorization.

1533239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2430, while the sum is 26.

The square root of 1533239 is about 1238.2402836283. The cubic root of 1533239 is about 115.3107913295.

The spelling of 1533239 in words is "one million, five hundred thirty-three thousand, two hundred thirty-nine".